PCR is a cyclic process that is used to amplify the DNA fragments. During the amplification, number of cycles is generally kept between 30 - 40 cycles. How many number of DNA strands will be produced if the number of cycles were kept 10 ?

Options

A. 512
B. 20
C. 256
D. 1024

Answer

To solve the question regarding how many DNA strands will be produced after 10 cycles of PCR, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the PCR Process**: PCR (Polymerase Chain Reaction) is a method used to amplify DNA. Each cycle of PCR doubles the amount of DNA present.

2. **Formula for DNA Amplification**: The number of DNA strands produced after 'n' cycles can be calculated using the formula:
\[ \text{Number of DNA strands} = 2^n \]
where \( n \) is the number of cycles.

3. **Identify the Number of Cycles**: In this case, the number of cycles \( n \) is given as 10.

4. **Calculate the Number of DNA Strands**:
\[ \text{Number of DNA strands} = 2^{10} \]

5. **Compute \( 2^{10} \)**:
- Start calculating \( 2^{10} \):
- \( 2^1 = 2 \)
- \( 2^2 = 4 \)
- \( 2^3 = 8 \)
- \( 2^4 = 16 \)
- \( 2^5 = 32 \)
- \( 2^6 = 64 \)
- \( 2^7 = 128 \)
- \( 2^8 = 256 \)
- \( 2^9 = 512 \)
- \( 2^{10} = 1024 \)

6. **Final Result**: Therefore, after 10 cycles, the number of DNA strands produced will be:
\[ \text{Number of DNA strands} = 1024 \]

### Conclusion:
The final answer is that after 10 cycles of PCR, 1024 DNA strands will be produced.